03979122 is referenced by 167 patents and cites 16 patents.

Improved golf clubs having metal heads, conventionally known as "irons", and processes for producing such "irons" in such a way that the swing weight of each "iron" produced can be varied within very close tolerances and/or the distribution of the weight of the metal head, i.e. the balance thereof, can be rendered adjustable by the user so as to overcome problems of "slicing" or "hooking" of the golf ball during use.

Title
Adjustably-weighted golf irons and processes
Application Number
5/586598
Publication Number
3979122
Application Date
June 13, 1975
Publication Date
September 7, 1976
Inventor
Peter A Belmont
7 White Birch Ridge, Weston, 06608
CT, US
Agent
Thomas L Tully
IPC
A63B 53/04
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